Fiendish Duo
Tracked across real Commander games played through TurnZero HQ.
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What it does
First strike (This creature deals combat damage before creatures without first strike.)
If a source would deal damage to an opponent, it deals double that damage to that player instead.
Combos with Fiendish Duo
Lines this card is part of — what it needs alongside it, and what the two of them do. An infinite result is the one that moves a deck's bracket.
- Heartless Hidetsugu Infinite
- Near-infinite damage to all players
- Delina, Wild Mage Kediss, Emberclaw Familiar Infinite
- Near-infinite damage
Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.
In the 99
Every deck whose current list includes Fiendish Duo, whatever its commander.
Most played under
| Commander | Decks | Games | Win rate |
|---|---|---|---|
| Eshki | 1 | 4 | — |
| Solphim, Mayhem Dominus | 1 | 3 | — |
| Tannuk, Steadfast Second | 1 | 0 | — |
Colors it shows up in
- Mono-Red 2 decks
Every version of Fiendish Duo
4 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly — a printing with no figure shows a dash rather than a zero, because Scryfall genuinely publishes none for some of them.

Foundations Jumpstart
- Normal
- $1.71

Murders at Karlov Manor Commander
- Normal
- $3.06

Promo
Kaldheim Promos
- Foil
- $4.88

Game Night 2019
- Foil
- $5.02
Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Fiendish Duo — a name search across every version, for the printings TCGplayer publishes no direct link to.
Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only — no individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.